could arch
Verbe régulier : arch - arched- arched

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could arch
you could arch
he could arch
we could arch
you could arch
they could arch 	I could be arching
you could be arching
he could be arching
we could be arching
you could be arching
they could be arching	I could have arched
you could have arched
he could have arched
we could have arched
you could have arched
they could have arched	I could have been arching
you could have been arching
he could have been arching
we could have been arching
you could have been arching
they could have been arching	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't arch
you couldn't arch
he couldn't arch
we couldn't arch
you couldn't arch
they couldn't arch 	I couldn't be arching
you couldn't be arching
he couldn't be arching
we couldn't be arching
you couldn't be arching
they couldn't be arching	I couldn't have arched
you couldn't have arched
he couldn't have arched
we couldn't have arched
you couldn't have arched
they couldn't have arched	I couldn't have been arching
you couldn't have been arching
he couldn't have been arching
we couldn't have been arching
you couldn't have been arching
they couldn't have been arching	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I arch?
could you arch?
could he arch?
could we arch?
could you arch?
could they arch? 	could I be arching?
could you be arching?
could he be arching?
could we be arching?
could you be arching?
could they be arching? 	could I have arched?
could you have arched?
could he have arched?
could we have arched?
could you have arched?
could they have arched? 	could I have been arching?
could you have been arching?
could he have been arching?
could we have been arching?
could you have been arching?
could they have been arching? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I arch?
couldn't you arch?
couldn't he arch?
couldn't we arch?
couldn't you arch?
couldn't they arch? 	couldn't I be arching?
couldn't you be arching?
couldn't he be arching?
couldn't we be arching?
couldn't you be arching?
couldn't they be arching? 	couldn't I have arched?
couldn't you have arched?
couldn't he have arched?
couldn't we have arched?
couldn't you have arched?
couldn't they have arched? 	couldn't I have been arching?
couldn't you have been arching?
couldn't he have been arching?
couldn't we have been arching?
couldn't you have been arching?
couldn't they have been arching?